A new modified RC6 algorithm for cryptographic applications

Abstract: Cryptography is the science of using mathematics to encrypt and decrypt data. Cryptography finds its application in the areas of Wireless Sensor Network, Smart Card, Identification, and Security. With the ever increasing growth of data communication in the field of ecommerce transactions and mobile communication data security has gained utmost importance. However the conflicting requirements of power, area and throughput of such applications make hardware cryptography an ideal choice. In this context, the RC6 algorithm plays a major role in the hardware cryptography. The conventional RC6 algorithm has difference structure of encryption and decryption. So that the algorithm occupies separate space for encryption and decryption unit which leads to increase in area. Here algorithm is devised by inserting a symmetric layer in which the half of whole RC6 rounds uses encryption procedure and the rest of process employs decryption one. Thus it leads to reduce in area and it has made compromise of speed also.

Keywords: Cryptography, Wireless Sensor networks, RC6 algorithm, encryption, decryption